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#!/usr/bin/perl -w
# -*- Mode: Perl -*-
# setup.pl ---
# Author : Manoj Srivastava ( srivasta@tiamat.datasync.com )
# Created On : Wed Mar 4 15:11:47 1998
# Created On Node : tiamat.datasync.com
# Last Modified By : Manoj Srivastava
# Last Modified On : Tue May 19 11:25:32 1998
# Last Machine Used: tiamat.datasync.com
# Update Count : 87
# Status : Unknown, Use with caution!
# HISTORY :
# Description :
# This file is designed to go into /usr/lib/apt/methods/setup
#
#use strict;
#use diagnostics;
#printf STDERR "DEBUG: Arguments $ARGV[0];$ARGV[1];$ARGV[2];\n";
# Handle the arguments
my $vardir=$ARGV[0];
my $method=$ARGV[1];
my $option=$ARGV[2];
my $config_file = '/etc/apt/sources.list';
my $boldon=`setterm -bold on`;
my $boldoff=`setterm -bold off`;
my @known_types = ('deb');
my @known_access = ('http', 'ftp', 'file');
my @typical_distributions = ('stable', 'unstable', 'testing', 'non-US');
my @typical_components = ('main', 'contrib', 'non-free');
my %known_access = map {($_,$_)} @known_access;
my %typical_distributions = map {($_,$_)} @typical_distributions;
# Read the config file, creating source records
sub read_config {
my %params = @_;
my @Config = ();
die "Required parameter Filename Missing" unless
$params{'Filename'};
open (CONFIG, "$params{'Filename'}") ||
die "Could not open $params{'Filename'}: $!";
while (<CONFIG>) {
chomp;
my $rec = {};
my ($type, $urn, $distribution, $components) =
m/^\s*(\S+)\s+(\S+)\s+(\S+)\s*(?:\s+(\S.*))?$/o;
$rec->{'Type'} = $type;
$rec->{'URN'} = $urn;
$rec->{'Distribution'} = $distribution;
$rec->{'Components'} = $components;
push @Config, $rec;
}
close(CONFIG);
return @Config;
}
# write the config file; writing out the current set of source records
sub write_config {
my %params = @_;
my $rec;
my %Seen = ();
die "Required parameter Filename Missing" unless
$params{'Filename'};
die "Required parameter Config Missing" unless
$params{'Config'};
open (CONFIG, ">$params{'Filename'}") ||
die "Could not open $params{'Filename'} for writing: $!";
for $rec (@{$params{'Config'}}) {
my $line = "$rec->{'Type'} $rec->{'URN'} $rec->{'Distribution'} ";
$line .= "$rec->{'Components'}" if $rec->{'Components'};
$line .= "\n";
print CONFIG $line unless $Seen{$line}++;
}
close(CONFIG);
}
# write the config file; writing out the current set of source records
sub print_config {
my %params = @_;
my $rec;
my %Seen = ();
die "Required parameter Config Missing" unless
$params{'Config'};
for $rec (@{$params{'Config'}}) {
next unless $rec;
my $line = "$rec->{'Type'} " if $rec->{'Type'};
$line .= "$rec->{'URN'} " if $rec->{'URN'};
$line .= "$rec->{'Distribution'} " if $rec->{'Distribution'};
$line .= "$rec->{'Components'}" if $rec->{'Components'};
$line .= "\n";
print $line unless $Seen{$line}++;
}
}
# Ask for and add a source record
sub get_source {
my %params = @_;
my $rec = {};
my $answer;
my ($type, $urn, $distribution, $components);
if ($params{'Default'}) {
($type, $urn, $distribution, $components) =
$params{'Default'} =~ m/^\s*(\S+)\s+(\S+)\s+(\S+)\s+(\S.*)$/o;
}
$type = 'deb';
$urn = "http://http.us.debian.org/debian" unless $urn;
$distribution = "stable" unless $distribution;
$components = "main contrib non-free" unless $components;
$rec->{'Type'} = 'deb';
$| = 1;
my $done = 0;
while (!$done) {
print "\n";
print "$boldon URL [$urn]: $boldoff";
$answer=<STDIN>;
chomp ($answer);
$answer =~ s/\s*//og;
if ($answer =~ /^\s*$/o) {
$rec->{'URN'} = $urn;
last;
}
else {
my ($scheme) = $answer =~ /^\s*([^:]+):/o;
if (! defined $known_access{$scheme}) {
print "Unknown access scheme $scheme in $answer\n";
print " The available access methods known to me are\n";
print join (' ', @known_access), "\n";
print "\n";
}
else {
$rec->{'URN'} = $answer;
last;
}
}
}
print "\n";
print " Please give the distribution tag to get or a path to the\n";
print " package file ending in a /. The distribution\n";
print " tags are typically something like:$boldon ";
print join(' ', @typical_distributions), "$boldoff\n";
print "\n";
print "$boldon Distribution [$distribution]:$boldoff ";
$answer=<STDIN>;
chomp ($answer);
$answer =~ s/\s*//og;
if ($answer =~ /^\s*$/o) {
$rec->{'Distribution'} = $distribution;
$rec->{'Components'} = &get_components($components);
}
elsif ($answer =~ m|/$|o) {
$rec->{'Distribution'} = "$answer";
$rec->{'Components'} = "";
}
else {
# A distribution tag, eh?
warn "$answer does not seem to be a typical distribution tag\n"
unless defined $typical_distributions{$answer};
$rec->{'Distribution'} = "$answer";
$rec->{'Components'} = &get_components($components);
}
return $rec;
}
sub get_components {
my $default = shift;
my $answer;
print "\n";
print " Please give the components to get\n";
print " The components are typically something like:$boldon ";
print join(' ', @typical_components), "$boldoff\n";
print "\n";
print "$boldon Components [$default]:$boldoff ";
$answer=<STDIN>;
chomp ($answer);
$answer =~ s/\s+/ /og;
if ($answer =~ /^\s*$/o) {
return $default;
}
else {
return $answer;
}
}
sub get_sources {
my @Config = ();
my $done = 0;
my @Oldconfig = ();
if (-e $config_file) {
@Oldconfig = &read_config('Filename' => $config_file)
}
print "\t$boldon Set up a list of distribution source locations $boldoff \n";
print "\n";
print " Please give the base URL of the debian distribution.\n";
print " The access schemes I know about are:$boldon ";
print join (' ', @known_access), "$boldoff\n";
# print " The mirror scheme is special that it does not specify the\n";
# print " location of a debian archive but specifies the location\n";
# print " of a list of mirrors to use to access the archive.\n";
print "\n";
print " For example:\n";
print " file:/mnt/debian,\n";
print " ftp://ftp.debian.org/debian,\n";
print " http://ftp.de.debian.org/debian,\n";
# print " and the special mirror scheme,\n";
# print " mirror:http://www.debian.org/archivemirrors \n";
print "\n";
my $index = 0;
while (!$done) {
if ($Oldconfig[$index]) {
push (@Config, &get_source('Default' => $Oldconfig[$index++]));
}
else {
push (@Config, &get_source());
}
print "\n";
print "$boldon Would you like to add another source?[y/N]$boldoff ";
my $answer = <STDIN>;
chomp ($answer);
$answer =~ s/\s+/ /og;
if ($answer =~ /^\s*$/o) {
last;
}
elsif ($answer !~ m/\s*y/io) {
last;
}
}
return @Config;
}
sub main {
if (-e $config_file) {
my @Oldconfig = &read_config('Filename' => $config_file);
print "$boldon I see you already have a source list.$boldoff\n";
print "-" x 72, "\n";
&print_config('Config' => \@Oldconfig);
print "-" x 72, "\n";
print "$boldon Do you wish to overwrite it? [y/N]$boldoff ";
my $answer = <STDIN>;
chomp ($answer);
$answer =~ s/\s+/ /og;
exit 0 unless $answer =~ m/\s*y/io;
}
# OK. They want to be here.
my @Config = &get_sources();
#&print_config('Config' => \@Config);
&write_config('Config' => \@Config, 'Filename' => $config_file);
}
&main();
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